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Computational Intelligence and Neuroscience
Volume 2009 (2009), Article ID 950403, 9 pages
Research Article

Some Computational Aspects of the Brain Computer Interfaces Based on Inner Music

1Laboratory of Biosignal Analysis Fundamentals, Institute of Biocybernetics & Biomedical Engineering, Polish Academy of Sciences, 02109 Warsaw, Poland
2Department of Informatics, Nicolaus Copernicus University, 87-100 Torun, Poland
3Group for Intelligent Systems, School of Mathematics, University of Belgrade, 11000 Belgrade, Serbia

Received 21 September 2008; Revised 11 January 2009; Accepted 11 March 2009

Academic Editor: Fabio Babiloni

Copyright © 2009 Wlodzimierz Klonowski et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We discuss the BCI based on inner tones and inner music. We had some success in the detection of inner tones, the imagined tones which are not sung aloud. Rather easily imagined and controlled, they offer a set of states usable for BCI, with high information capacity and high transfer rates. Imagination of sounds or musical tunes could provide a multicommand language for BCI, as if using the natural language. Moreover, this approach could be used to test musical abilities. Such BCI interface could be superior when there is a need for a broader command language. Some computational estimates and unresolved difficulties are presented.